Spray gun



FIG. 1 is a first isometric view of a spray gun;

FIG. 2 is a second isometric view of the spray gun;

FIG. 3 is a right side view of the spray gun;

FIG. 4 is a left side view of the spray gun;

FIG. 5 is a front elevational view of the spray gun;

FIG. 6 is a rear elevational view of the spray gun;

FIG. 7 is a top plan view of the spray gun; and,

FIG. 8 is a bottom plan view of the spray gun.

The broken lines in the Figures represent portions of a spray gun and form no part of the claimed design. 

CLAIM The ornamental design for a spray gun, as shown and described. 